Etimesgut Air Base (IATA: ANK, ICAO: LTAD) (Turkish: Etimesgut Hava Üssü) is an airbase of the Turkish Air Force located 15 km (9.3 mi) west of Ankara, Turkey. It is owned by Turkish Air Force and jointly operated by the air force and the Turkish Aeronautical Association (Turkish: Türk Hava Kurumu) (THK). International Defense Industry, Aerospace and Maritime Fair (IDEF) and civil aviation airshows are being held at this airport.

The airport has two runway in east–west direction. The northern part of the airport, limited by the urban section of Ankara-Istanbul highway E90 / D.200 at north, is assigned to the military with the longer runway 11L/29R. The southern area and the shorter runway 11R/29L are being used by the THK. The Ankara Aviation Museum, open to public, is located at the northeastern corner of the airport.